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Finding the Fourth Proportional to 6,669.28, 9,992.56 and 3,740.32

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Solution

The fourth proportional to 6,669.28, 9,992.56 and 3,740.32 is: 5,604.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,669.28 : 9,992.56 = 3,740.32 : x
  2. Step 2: Convert to fraction form
    6,669.28/9,992.56 = 3,740.32/x
  3. Step 3: Cross multiply
    6,669.28x = 9,992.56 × 3,740.32
  4. Step 4: Simplify right side
    6,669.28x = 37,375,372.02
  5. Step 5: Solve for x
    x = 37,375,372.02/6,669.28
  6. Step 6: Final answer
    x = 5,604.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.